Cheap flights from London Heathrow Airport to Allentown from £567
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Heathrow to Allentown
Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Allentown (ABE). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 11 July 2025.
Round-trip from | £567 |
---|---|
Popular in | August |
Cheapest in | April |
Average price | £694 |
Find flight deals from Heathrow to Allentown
Cheapest flights from Heathrow to AllentownExplore the most affordable flight options available from Heathrow to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 July 2025.
Explore the most affordable flight options available from Heathrow to Allentown. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 July 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from Heathrow to Allentown that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 11 July 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Allentown that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
LondonAllentown
LHR - ABE
LHRABE
London Heathrow
Fri 3/10
13:05-22:41
1 stop14h 36m
Allentown-Bethlehem
Mon 6/10
06:30-13:30
1 stop26h 00m
LondonAllentown
LHR - ABE
LHRABE
London Heathrow
Fri 3/10
20:25-12:08
2 stops20h 43m
Allentown-Bethlehem
Mon 6/10
13:00-07:15
1 stop13h 15m
LondonAllentown
LHR - ABE
LHRABE
London Heathrow
Sun 24/8
20:55-17:34
2 stops49h 39m
Allentown-Bethlehem
Sun 31/8
06:00-07:15
2 stops20h 15m
LondonAllentown
LHR - ABE
LHRABE
London Heathrow
Sun 24/8
11:00-22:37
1 stop16h 37m
Allentown-Bethlehem
Sun 31/8
13:56-07:40
1 stop12h 44m
LondonAllentown
LHR - ABE
LHRABE
London Heathrow
Sun 24/8
08:30-16:53
1 stop13h 23m
Allentown-Bethlehem
Sun 31/8
13:00-08:20
1 stop14h 20m
LondonAllentown
LHR - ABE
LHRABE
London Heathrow
Wed 3/9
06:30-21:54
2 stops20h 24m
Allentown-Bethlehem
Mon 8/9
17:28-11:45
1 stop13h 17m
LondonAllentown
LHR - ABE
LHRABE
London Heathrow
Fri 8/8
14:10-12:15
2 stops27h 05m
Allentown-Bethlehem
Fri 22/8
12:56-12:05
2 stops42h 09m
LondonAllentown
LHR - ABE
LHRABE
London Heathrow
Wed 23/7
15:50-12:11
3 stops49h 21m
LondonAllentown
LHR - ABE
LHRABE
London Heathrow
Mon 1/9
09:20-17:34
1 stop13h 14m
LondonAllentown
LHR - ABE
LHRABE
London Heathrow
Tue 19/8
08:55-21:44
2 stops17h 49m
Best time to book a flight from Heathrow to Allentown
Have a flexible travel schedule? Discover the best time to fly to Allentown from Heathrow with our price prediction graph.
Reviews of airlines servicing Allentown
Get insights into the airlines that provide service to Allentown. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Allentown. Reviews last updated 11 July 2025.
Read through reviews of airlines operating flights from London Heathrow Airport to Allentown, such as Delta, KLM, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
Comfort
Overall
Boarding
Entertainment
Crew
Reviews
Michael,Jul 2025
AMS - ATL
Food
Comfort
Overall
Boarding
Entertainment
Crew
Reviews
Michael,Jul 2025
AMS - ATL
Food
Comfort
Overall
Boarding
Entertainment
Crew
Reviews
Michael,Jul 2025
AMS - ATL
Food
Comfort
Overall
Boarding
Entertainment
Crew
Reviews
Michael,Jul 2025
AMS - ATL
Food
Comfort
Overall
Boarding
Entertainment
Crew
Reviews
Michael,Jul 2025
AMS - ATL
Food
Comfort
Overall
Boarding
Entertainment
Crew
Reviews
Michael,Jul 2025
AMS - ATL
Related info for your journey
Find useful and relevant information for your journey from Heathrow to Allentown. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes for Heathrow to Allentown
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from Heathrow to Allentown
Discover the top airline that operate flights from Heathrow to Allentown. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 11 July 2025.
Fly with Cheapflights
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Heathrow to Allentown?
Deals for Heathrow to Allentown flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from Heathrow to Allentown?
Millions of users choose and trust Cheapflights to book the best flight deals from Heathrow to Allentown for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Can Cheapflights find flights from Heathrow to Allentown with no change fees?
Need flexible booking options for your flight to Allentown from Heathrow? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.
Can Cheapflights notify me if prices for flights from Heathrow to Allentown become cheaper?
Yes! Start tracking prices for Heathrow to Allentown flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.